Canning apparatus.



T. H. EIDSON.

I GANNING APPARATUfi. APPLIOATION FILED JAN. 17, 1908.

. Patented NOV. 9, 1909.

2 SHEETS-SHEET 1.

THOMAS H. EIDSON, OF ELKIN, NORTH CAROLINA.

oANnIue APPARATUS.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed January 17, 1908. Serial No. 411,348.

To all whom it may concern:

Be it known that I, THOMAS H. EIDsoN, a citizen of the United States,residing at Elkin, in the county of Surry and State of North Carolina,have invented a new and useful Canning Apparatus, of which the followingis a specification.

This invention relates to canning apparatus and more particularly tomeans for steaming and boiling the cans immediately prior to the seamingoperation, so as to insure the expulsion of air from the cans.

The principal object of the invention is to provide a boiler of novelform, designed to be used in connection with a furnace of any well knownor special type, said boiler being so constructed as to utilizepractically all of the generated heat for raising the temperature of thewater contained within the boiler, the body of Water being so disposedas to insure the most efiective heating re sults from the heatingmedium.

A further object is to provide simple means whereby the heating of thewater can be conveniently regulated.

With these and other objects in View the invention consists of certainnovel details of construction and combinations of parts,

hereinafter more fully described and pointe'd out in the claims.

In the accompanying drawings the pre ferred form of the invention hasbeen shown.

In said drawings :F igure 1 isa central vertical longitudinal sectionthrough the apparatus, including the furnace thereunder said sectionbeing taken on the line AB Fig. 2. Fig. 2 is a plan view of theapparatus, a portion of the boiler being shown in section. Fig. 3 is acentral vertical transverse section through the apparatus said sectionbeing taken on the line (,D Fig. 2.

Referring to the figures by characters of reference 1 designates afurnace of any preferred type and the top of which is designed to beclosed by the boiler constituting the present invention. This boiler,which has been indicated at 2, is formed of side walls 4., and front andrear walls 5 and 23 respectively, said boiler being provided with abottom 3, which is slightly shorter than the side walls 4, so as to forman outlet port 6, extending throughout the width of the boiler. A flue9, preferably rectangular in cross section, is arranged longitudinallywithin the boiler and spaced from the bottom thereof, said flue beingprovided at each end with a head 7 projecting throughout the width ofthe boiler, one of said heads bemg designed to receive products ofcombustion from the port 6, while the other head opens into an outletstack 21, which is detachably mounted upon a short tube or thimble 20,extending from the front wall 5.

As shown in the drawings each head 7 consists of a horizontal wall and avertical wall, the two walls cooperating with the bottom and walls ofthe receptacle or boiler 2 to form chambers.

Asheretofore stated, the heads 7 extend throughout the width of theboiler 2, whereas thefiue 9 connecting said heads is spaced both fromthe bottom 3 and from the side walls 2. The spaces or pockets 12 formedbetween flue or duct 9 and walls 4:, and the space 10 formed betweensaid flue and the bottom 3 will thus be filled with water poured intothe boiler 2, and will therefore quickly absorb the heat radiated fromthe line 9 and the bottom 3 during the passage of the products ofcombustion from the furnace l to the stack 21, as hereinafter set forth.

The rear wall of the rear head 7 of the boiler consists of a damper 25,hingedly mounted as at 24 upon the lower portion of the rear wall 23,there being a rod 26 secured to this damper and journaled within eyes28. This rod extends beyond one side of the boiler and terminates in ahandle or loop 27, whereby the damper can be readily opened or closed,for the purpose hereinafter set forth. A valved outlet 22 may beprovided for the purpose of draining the tank.

Standards 14 extend upwardly from the side walls 4, and are notched, asindicated at 15, for the reception of cross-bars 18. These bars aremounted in the upper ends of arms 17, extending upwardly from the sidesof trays 16, the bottoms of which are apertured so as to permit water tofreely circulate therethrough. Preferably two of these trays areutilized, and the bars 18 can be placed in any of the notches, so as tosup port the trays at desired elevations within the tank 2.

In using the device here described it is first necessary to provide afurnace having an open top and the boiler 2 is then placed thereon sothat products of combustion will be free to pass upwardly from thefurnace and into the rear head 7 through the port 6. Water is placedwithin the boiler and will fill the spaces below and at the sides of theflue 9, and the cans to be steamed and boiled are then placed within thetrays 16. These trays are supported within the upper portion of theboiler and preferably with their apertured bottoms slightly below thelevel 'of the Water. The products of combustion passing from thefurnacewill escape to the stack 21 by way of the flue 9 and its heads 7, andheat radiating from the flue and from the bottom 3 of the boiler, willbe quickly taken up by the water and the temperature of the Waterquickly raised to the boiling point. When it is desired to preventoverheating of the boiler and the too rapid evaporation of the water,the damper 25 can be opened by means of the loop or handle 27 and theproducts of combustion will therefore flow directly from the furnace andthrough the rear head 7 into the surrounding atmosphere and Withoutpassing through the flue 9 and into the stack 21.

Importance is attached to the fact that the boiler constitutes acomplete article which can be sold for use in connection With furnacesof dilferent styles. Another important feature resides in the fact thatthe water contained within the boiler completely surrounds the flue 9and contacts directly with the bottom 3 of the boiler, so thatpractically all of the heat radiating from said parts is absorbed bysaid water. The particular means utilized for controlling the heat isalso important. By so con structing the boiler as to cause the water toextend completely around the flue, the side walls of the boiler areprevented from becoming overheated, and it becomes possible thereforefor the operator to perform the necessary duties in connection with theapparatus with less discomfort than would otherwise be the case.

Obviously various changes may be made in the construction andarrangement of the parts Without departing from the spirit orsacrificing the advantages of the invention.

What is claimed is 1. In canning apparatus a boiler having alongitudinally extending flue therein and spaced from the bottom, saidflue terminating in heads extending throughout the width of the boilerat each end thereof, one of said heads having an inlet port for thereception of products of combustion from a furnace, an outlet stackextending from the other head of the flue, there being spaces betweenthe sides of the flue and the sides of the boiler for the reception ofwater contained in the boiler, a damper constituting one wall of theinlet head of the fine, means for actuating the damper, and a traydetachably and adjustably supported within the boiler.

2. In canning apparatus the combination with a furnace open at the top;of a boiler mounted upon the furnace, a line extending longitudinallywithin and spaced from the bottom of the boiler, said fine havingterminal heads extending throughout the width of the end portions of theboiler, one of said heads having an inlet port opening into the saidfurnace for the reception of combusti n products, a stack connected tothe other head, a damper movably mounted upon the boiler andconstituting one wall of the receiving head of the damper, said fluebeing spaced from the sides as well as from the bottom of the boiler,and a tray detachably and adjustably supported within the boiler.

3. In an apparatus of the class described, the combination with a boilerhaving a. fiat bottom provided with an opening extending transverselyacross one end thereof, a horizontal wall in the boiler at one endthereof: and disposed over the opening, a vertical wall cooperating withthe first wall to form a head and provided with an opening, a head inthe opposite end of the boiler and provided with an opening, a finehaving its ends connected with the openings of the heads, a tubularmember extending out of the boiler and communicating with the secondmentioned head, and a stack removably supported on the said tubularmember.

4. In an apparatus of the class described. the combination of areceptacle having a Hat bottom provided with an opening extendingtransversely across one end thereof, a horizontal wall in the receptacleat one end thereof and disposed over the opening, a vertical wallcooperating with the first wall to form achamber and provided with anopening, a chamber in the opposite end of the receptacle and providedwith an opening, a duct formed on the bottom of the receptacle andhaving its ends connected with the openings of the chambers, a shorttube extending out of the receptacle and communicating with thesecond-mentioned chamber, and a stack removably supported on the saidtube.

In testimony that I claim the foregoing as my own, I lHUO hereto afiixedmy signature in the presence of two witnesses.

THOMAS H. EIDSUN.

Vitnesses Jas. M. \VALKnn, Var. J. NEALE.

